Laboratory Scale Logging Computer - Revision history

imported>Ken at 04:02, 24 October 2008

2008-10-24T04:02:06Z

imported>Ken at 02:11, 24 October 2008

2008-10-24T02:11:02Z

imported>Ken at 01:29, 15 October 2008

2008-10-15T01:29:58Z

imported>Ken at 01:21, 15 October 2008

2008-10-15T01:21:37Z

imported>Ken at 00:53, 15 October 2008

2008-10-15T00:53:13Z

imported>Ken at 00:50, 15 October 2008

2008-10-15T00:50:22Z

imported>Ken at 00:49, 15 October 2008

2008-10-15T00:49:35Z

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Software has been developed at WERC to interface a two different laboratory scales to a Linux computer. So far the system has been made with work with the Ohaus Navigator and the Denver Instruments PK6, but other scales or other types of equipment could likely also be supported.

The software is currently installed on one computer, host name nuptse, and configured to log data from both the Ohaus and Denver Instruments scales. The system is intended to be reliable and simple to operate, with no need to do anything but turn on the computer, connect the serial port to the scale, and turn on the scale.

* turn on the computer
* connect the serial port to the scale
* power-on the scale

Data should automatically start being received from the scale
and stored to the hard drive. To retrieve the scale data from the computer:

* connect a USB "key" to an available port on the computer
* the computer should beep once when the USB key is seen, and will automatically copy queued data to the key.
* the computer will beep twice with the data copy is complete and the key can be removed

← Older revision		Revision as of 04:02, 24 October 2008
Line 38:		Line 38:

	This command is not really tied to the scale software, but can be used, for instance, to run the scale-cmd interface on a non-login virtual terminal.		This command is not really tied to the scale software, but can be used, for instance, to run the scale-cmd interface on a non-login virtual terminal.
		+
		+	== a working system on host nuptse ==
		+
		+	Host nuptse is intended to be used as an "appliance", so not needing a login session. Running as root, on startup the scaled-ohaus.pl daemon is started, and then scale-cmd-ohaus is started under the wraptty wrapper to put the interface on tty9.
		+
		+	Also, the data will be automatically logged to
		+
		+	/var/local/spool/ohaus.txt
		+
		+	for any data query from the scale. Another subsystem is in place on host nuptse to auto-mount a usb key, copy the files in /var/local/spool/ to it, and then unmount the usb key. This process beeps once when the usb key is mounted, and beeps twice when the copy is complete and the usb is unmounted and can be removed.
		+
		+	With this system, host nuptse can be left running if desired, or started up when needed, etc. The "p" and "iN" commands can be used to query the scale, where the N is an interval in seconds at which to query the scale. Use i-N to stop an interval query, and "i" alone to see what queries are active.
		+
		+	It might be worth also running the interface for another scale on tty8, but that can wait until there's a reason to do so.

@@ Line 1: / Line 1: @@
 Software has been developed at WERC to interface two different laboratory scales to a Linux computer.  So far the system has been made with work with the Ohaus Navigator and the Denver Instruments PK6, but other scales or other types of equipment could likely also be supported.
 The software is currently installed on one computer, host name "nuptse", and configured to log data from both the Ohaus and Denver Instruments scales.  The system is intended to be reliable and simple to operate.  To begin logging data:
@@ Line 15: / Line 18: @@
 To turn off the computer, it should be sufficient to hit Ctl-Alt-Del.

← Older revision		Revision as of 01:29, 15 October 2008
Line 1:		Line 1:
−	Software has been developed at WERC to interface a two different laboratory scales to a Linux computer. So far the system has been made with work with the Ohaus Navigator and the Denver Instruments PK6, but other scales or other types of equipment could likely also be supported.	+	Software has been developed at WERC to interface two different laboratory scales to a Linux computer. So far the system has been made with work with the Ohaus Navigator and the Denver Instruments PK6, but other scales or other types of equipment could likely also be supported.

	The software is currently installed on one computer, host name "nuptse", and configured to log data from both the Ohaus and Denver Instruments scales. The system is intended to be reliable and simple to operate. To begin logging data:		The software is currently installed on one computer, host name "nuptse", and configured to log data from both the Ohaus and Denver Instruments scales. The system is intended to be reliable and simple to operate. To begin logging data:

← Older revision		Revision as of 01:21, 15 October 2008
Line 13:		Line 13:
	* the computer should beep once when the USB key is seen, and will automatically copy queued data to the key		* the computer should beep once when the USB key is seen, and will automatically copy queued data to the key
	* the computer will beep twice with the data copy is complete and the key can be removed		* the computer will beep twice with the data copy is complete and the key can be removed
		+
		+	To turn off the computer, it should be sufficient to hit Ctl-Alt-Del.

@@ Line 1: / Line 1: @@
 Software has been developed at WERC to interface a two different laboratory scales to a Linux computer.  So far the system has been made with work with the Ohaus Navigator and the Denver Instruments PK6, but other scales or other types of equipment could likely also be supported.
-The software is currently installed on one computer, host name nuptse, and configured to log data from both the Ohaus and Denver Instruments scales.  The system is intended to be reliable and simple to operate, with no need to do anything but turn on the computer, connect the serial port to the scale, and turn on the scale.
+The software is currently installed on one computer, host name "nuptse", and configured to log data from both the Ohaus and Denver Instruments scales.  The system is intended to be reliable and simple to operate.  To begin logging data:
 * turn on the computer
@@ Line 8: / Line 8: @@
 Data should automatically start being received from the scale
-and stored to the hard drive.  To retrieve the scale data from the computer:
+and stored to the hard drive.  To retrieve the logged data from the computer:
 * connect a USB "key" to an available port on the computer
-* the computer should beep once when the USB key is seen, and will automatically copy queued data to the key.
+* the computer should beep once when the USB key is seen, and will automatically copy queued data to the key
 * the computer will beep twice with the data copy is complete and the key can be removed